Product Details:
Name: Forged Trunnion Ball ValveCatalog: Ball Valve
Certification: API6D-CE-ISO-API607
Contact Details:
Contact Person: Sales Manager
Email: info@seekovalve.com
Tel: 0086-577-67312948
Fax: 0086-577-67312948
Seeko is one of the leading China Forged Trunnion Ball Valve manufacturers, welcome to inquiry Forged Trunnion Ball Valve from our factory.
INTERNAL TRUNNION BALL VALVE DESCRIPTION
The ball of trunnion mounted configuration is supported by bearing plates hold by the end adaptors. In such a way the pressure loads are transferred to the valve body granting a smooth rotation of the ball with low torque levels and reduced seat seal wear.
SEEKO Trunnion Mounted Bolted Body Side‐Entry Ball Valves represent the
basic design standard.
They are manufactured in a wide range of sizes and pressure classes typically
from forgings.
EXTERNAL TRUNNION BALL VALVE DESCRIPTION
The ball of trunnion mounted configuration
is supported by external trunnions bolted to the body.
In such a way the pressure loads are transferred to the valve body granting a
smooth rotation of the ball with low torque levels and reduced seat seal
wear.
BASIC CHARACTERISTICS
API 6D, API6Adesign
Full Bore and Reduced Bore design
Flanged or Welding Ends
Spring loaded floating seats
Bi‐directional sealing
Anti blow‐out stem
Anti static device
Heavy duty bearings
Double Block & Bleed design
Fire safe design
PRODUCT RANGE
Size: 4” to 48”
Pressure Classes:
ASME 150# to 2500#
API6A3000 to 15000
Temperature Range: ‐196°C to 450°C
DESIGN FEATURES
Soft Seating Standard
Manual operated or Actuated Standard
Seats with Delta Ring design On Request
Stem Extension On Request
Self‐relieving Seats Standard
Extended Bonnet On Request
Double Piston Effect Seats On Request
Welded Pups On Request
Vent & Drain ports Standard
Sealing Areas Overlay On Request
Emergency sealant injection On Request
Wetted Areas Overlay On Request
MATERIAL SELECTION
BODY, CLOSURE
– CS (ASTM A105,A182 F11,A182 F22), LTCS (ASTM A350 LF2,LF3,12Mn)
– High strength LTCS (A694 F52, F60, F65)
– Austenitic SS (ASTM A182 F304, F316,F321)
– Duplex SS 22% Cr (ASTM A182 F51)
– Superduplex SS 25% Cr (ASTM A182 F53/F55)
– 6Mo SS (ASTM A182 F44)
– Inconel 625
– Incoloy 825
– Monel
BODY SEALS / SEAT SEALS
– Viton A FKM O‐ring
– Viton GLT FKM O‐ring
– Viton AED FKM O‐ring
– HNBR AED O‐ring
– FFKM O‐ring
– PTFE + ELGILOY Lip‐Seals
– Graphite Packing / Gaskets
TRIM (SEAT, BALL and STEM)
– CS (ASTM A105), LTCS (ASTM A350 LF2) + ENP0.003”or overlay on request
– High strength LTCS (A694 F52, F60, F65) + ENP0.003”
– AISI 410 Martensitic SS (ASTM A182 F6a)
– 17-4 PH
– Austenitic SS (ASTM A182 F304, F316)
– Duplex SS 22% Cr (ASTM A182 F51)
– Superduplex SS 25% Cr (ASTM A182 F53/F55)
– 6Mo SS (ASTM A182 F44)
– Inconel 625
– Inconel 718
– Incoloy 825
– Monel
SEAT INSERT
– Delta Ring with O Ring design on request
– PTFE / RPTFE
– Nylon / DEVLON V
– PCTFE / KEL-F
– PEEK
– Stellite or Tungsten CARBIDE COATING (0.15 mmmin. thk.)
BOLTING
– ASTM A193 B7/B7M, ASTM A320 L7/L7M,
– A193/A320 B8/B8M
– UNS S31803, UNS S32760, ASTM A453‐GR.660
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